Author: ron.sigal(a)jboss.com Date: 2008-05-07 04:05:58 -0400 (Wed, 07 May 2008) New Revision: 4123 Added: remoting2/branches/2.x/src/main/org/jboss/remoting/ServerInvocationHandlerWrapper.java Log: JBREM-977: A new wrapper for ServerInvocationHandler MBean proxies. Added: remoting2/branches/2.x/src/main/org/jboss/remoting/ServerInvocationHandlerWrapper.java =================================================================== --- remoting2/branches/2.x/src/main/org/jboss/remoting/ServerInvocationHandlerWrapper.java (rev 0) +++ remoting2/branches/2.x/src/main/org/jboss/remoting/ServerInvocationHandlerWrapper.java 2008-05-07 08:05:58 UTC (rev 4123) @@ -0,0 +1,160 @@ + +/* +* JBoss, Home of Professional Open Source +* Copyright 2005, JBoss Inc., and individual contributors as indicated +* by the @authors tag. See the copyright.txt in the distribution for a +* full listing of individual contributors. +* +* This is free software; you can redistribute it and/or modify it +* under the terms of the GNU Lesser General Public License as +* published by the Free Software Foundation; either version 2.1 of +* the License, or (at your option) any later version. +* +* This software is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General Public +* License along with this software; if not, write to the Free +* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA +* 02110-1301 USA, or see the FSF site: http://www.fsf.org. +*/ +package org.jboss.remoting; + +import java.security.AccessController; +import java.security.PrivilegedAction; +import java.security.PrivilegedActionException; +import java.security.PrivilegedExceptionAction; + +import javax.management.MBeanServer; + +import org.jboss.remoting.callback.InvokerCallbackHandler; +import org.jboss.remoting.util.SecurityUtility; + +/** + * A ServerInvocationHandlerWrapper is used to wrap an MBean proxy that implements + * org.jboss.remoting.ServerInvocationHandler. If necessary, each call will go + * through an AccessController.doPrivileged() call. + * + * @author <a href=&quot;ron.sigal(a)jboss.com&quot;&gt;Ron Sigal</a> + * @version $Revision: 1.1 $ + * <p> + * Copyright May 4, 2008 + * </p> + */ +public class ServerInvocationHandlerWrapper implements ServerInvocationHandler +{ + private ServerInvocationHandler proxy; + + public ServerInvocationHandlerWrapper(ServerInvocationHandler proxy) + { + this.proxy = proxy; + } + + public void addListener(final InvokerCallbackHandler callbackHandler) + { + if (SecurityUtility.skipAccessControl()) + { + proxy.addListener(callbackHandler); + return; + } + + AccessController.doPrivileged( new PrivilegedAction() + { + public Object run() + { + proxy.addListener(callbackHandler); + return null; + } + }); + } + + public Object invoke(final InvocationRequest invocation) throws Throwable + { + if (SecurityUtility.skipAccessControl()) + { + return proxy.invoke(invocation); + } + + try + { + return AccessController.doPrivileged( new PrivilegedExceptionAction() + { + public Object run() throws Exception + { + try + { + return proxy.invoke(invocation); + } + catch (Throwable t) + { + throw new Exception(t); + } + } + }); + } + catch (PrivilegedActionException e) + { + Throwable cause = e.getCause(); + if (cause.getCause() == null) + throw cause; + else + throw cause.getCause(); + } + } + + public void removeListener(final InvokerCallbackHandler callbackHandler) + { + if (SecurityUtility.skipAccessControl()) + { + proxy.removeListener(callbackHandler); + return; + } + + AccessController.doPrivileged( new PrivilegedAction() + { + public Object run() + { + proxy.removeListener(callbackHandler); + return null; + } + }); + } + + public void setInvoker(final ServerInvoker invoker) + { + if (SecurityUtility.skipAccessControl()) + { + proxy.setInvoker(invoker); + return; + } + + AccessController.doPrivileged( new PrivilegedAction() + { + public Object run() + { + proxy.setInvoker(invoker); + return null; + } + }); + } + + public void setMBeanServer(final MBeanServer server) + { + if (SecurityUtility.skipAccessControl()) + { + proxy.setMBeanServer(server); + return; + } + + AccessController.doPrivileged( new PrivilegedAction() + { + public Object run() + { + proxy.setMBeanServer(server); + return null; + } + }); + } +} \ No newline at end of file